So far I've been pretty lucky... except for the code some of my professors at uni used in their assignments. A couple of them had this horrid habit of giving you a horribly-written, out-of-date (we're talking these chuckle heads used the same code for years on end and wondered why it didn't work on new versions of Java), messy source file with "fill in the blanks" sections like it was some kind of Java Mad Libs book. One of them had an entire jarchive of data structures we were required to use that he'd written in the '90s and NEVER UPDATED. Another one had a script he'd written for his own specialized assembly macro preprocessor that he'd been using without update for who even knows how long. Now, we were using one of those goofy virtual machines with its own simplified assembly language, and we were on the fourth version of the program. This guy'd written his macro processor in Java for the second version, never updated his Java source, only provided a barely-working .bat script for running it, even though the department's official preference was a *nix environment, and implemented this horrid "pretty-printer" that had a regrettable little habit of eating code. You heard that right. You'd run build.bat and it'd expand your macros then send it over to the pretty-printer which would very infrequently just replace the existing program file with an empty file. When we brought it to his attention, he goes "...huh. never happened to me." and proceeded to use the very same set of programs for the next three semesters, even when the assembly simulator was updated again. I heard wails of anguish from the poor sad souls that came after me as their macro processor created program files with deprecated operations, their pretty printer printed out beautiful, perfectly-organized empty files, and the professor responded to every second of a student begging for an updated version with "...huh. never happened to me." I never saw a single bug reported to either of those professors even acknowledged, let alone fixed. Some of the Java Mad Libs were the same ones they'd started using when they first switched the curriculum from Ada to Java. Thankfully after my first year I escaped into the bliss of the next three years, which were full of *nix and C and beauty.